Ammons,Nelle <br/><br/>
A manual of the Liverworts of West Virginia 

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 - Indiana-USA  Univ. Press Notre Dame  1940 
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<br/><br/><label>ISBN: </label>
<br/><br/><label>Subjects--Topical Terms: </label>--Briofitas--Hepaticas--Musgos--Livertworts--<br/>Botanica